Keystones — Cornerstone
Five GCSE retrieval questions · 29 March 2021 · mathsvault.uk/keystones
-
1. Number Adding fractions
Add: 2⁄8 + 3⁄5
Answer: 17⁄20 -
2. Algebra Two-step equations
Solve: 4x - 12 = 8
Answer: x = 5 -
3. Geometry Pythagoras — hypotenuse
Find the hypotenuse of a right triangle with sides 7cm and 24cm
Answer: 25cm -
4. Ratio Sharing in a ratio
Share 133 in the ratio 4:3
Answer: 76 and 57 -
5. Statistics Mean
Find the mean of: 17, 4, 20, 2, 5
Answer: 9.6